I have been engaged in the engraving industry for nearly 20 years.
The machines for engraving stone seals currently on the market mainly include the following categories:
A: Mechanical type
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It is the kind that can be operated automatically after designing the stamp on the computer and then outputting instructions
1: Laser engraving machine
Advantages: high precision,
Disadvantages: The depth is not enough. If you want to carve a depth of 1 mm, a 2 cm * 2 cm seal will probably have to be carved several times
2: Sandblasting engraving machine
Advantages: Fast processing speed
Disadvantages: The accuracy is not very ideal, there is dust, and auxiliary tools such as cutting machines and plastic films need to be added
3: Computer engraving machine:
Advantages: High precision, fast speed
Disadvantages: relatively high price
B: Manual type
1: Electric engraving machine or The pneumatic engraving machine (looks like a very thick pen) is equipped with various grinding heads
Advantages: low cost, light weight, easy to carry
Disadvantages: difficult to operate, skilled It takes a long time to learn carving
2: Traditional carving knife, commonly known as chisel
This technology has been eliminated and is not recommended.